package mapper;

import org.apache.ibatis.annotations.*;
import pojo.Brand;

import java.util.List;

public interface BrandMapper {
    //查询所有品牌（基本开发完成）
    @ResultMap("brandResultMap")
    @Select("select * from t_brand")
    List<Brand> selectAll();

//    单个查询
    @Select("select * from t_brand where id=${id}")
    @ResultMap("brandResultMap")
    Brand selectById(int id);

//    插入一个品牌
    @Insert("insert into t_brand values" +
            "(null,#{brandName},#{companyName},#{ordered},#{description},#{status})")
    void add(Brand brand);

//      修改品牌
@Update("update t_brand set brand_name=#{brandName},company_name=# {companyName}, " +
        "ordered=#{ordered},description=#{description},status=#{status} " +
        "where id=#{id}")
void update(Brand brand);

//删除品牌
@Delete("delete from t_brand where id=#{id}")
void deleteById(int id);


//以下是分页查询
//1.查询某一页的数据
    @Select("SELECT * FROM t_brand LIMIT #{beginIndex},#{pageSize}")
    List<Brand> selectAllPage(@Param("beginIndex")int beginIndex,
                              @Param("pageSize")int pageSize);
//2.查询总的数据条数
    @Select("SELECT count(1) FROM t_brand")
    int selectCount();


//    批量删除
    @Delete("delete from t_brand where id in #{id}")
void deleteByIds(int[] ids);
}
